问题
I want to buy a bike. At last I decided ____ a black one.
A:Thank you all the same.
B:I’ll stay at home.
C:It doesn’t matter.
D:I’d love to, but I’m too busy to come.;
B:I’ll stay at home.
C:It doesn’t matter.
D:I’d love to, but I’m too busy to come.;
正确答案是：
